PSI - Issue 71

Manas Samantaray et al. / Procedia Structural Integrity 71 (2025) 348–356

353

reduces the deformation of the composite. Additionally, improving interfacial bond leads to enhance the load transfer efficiency. The reduction in matrix dominance also plays a crucial role, as the polymer phase, which has a lower modulus, becomes less influential at higher fiber fractions.

0 2 4 6 8

7.2

6.46

6.02

5.21

Breaking Elongation

10

20

30

40

Breaking Elongation (%)

Fibre Volume Fraction (%)

Figure.6. Breaking elongation after preparation of novel composite

100 120

110.95

80.15

65.83

0 20 40 60 80

43.24

Flexural Strength (MPa)

Flexural Strength

0

10

20

30

40

Fibre Volume Fraction (%)

Figure.7. Increase in Flexural strength of the composites

8

6.15 7.14

6

3.68

2 Impact Strength (Kj/m 2 ) 4

2.43

Impact Strength

0

0

10

20

30

40

Fibre Volume Fraction (%)

Figure.8. Increase in Impact strength of the composites.

When the fiber volume fraction reached 40 percent, a reversal in the peak tensile stress trend was observed. However, Young's modulus increased to 3400.38 MPa. With a higher fiber volume or fiber volume fraction of 40 percent, it led to improper resin flow in the preform, causing a cavity inside. The maximum bending stress increased from 43.24 to 110.95 MPa as shown in Table 4 when the fiber volume fraction increased from 10 percent to 40 percent. This corresponds to a larger fiber-matrix contact area and fiber volume fraction, leading to higher load transfer from the matrix to the fiber. The maximum bending stress increased as the fiber volume percentages changed from 10 to 20, 20 to 30, and 30 to 40 percent, respectively. A graphic representation of all mechanical properties with respect to the volume fraction of textile waste is shown in Figure – 4 to 8.